Commitments And Contingencies (Construction Projects) (Narrative) (Details)
$ in Thousands |
6 Months Ended |
|
|
|
Jun. 30, 2018
USD ($)
item
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2015
item
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Number of units | item |
858
|
|
|
| Amount outstanding |
$ 856,188
|
$ 822,288
|
|
| XS Hotel Urban Renewal Associates LLC [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Percentage of interest in venture |
|
|
90.00%
|
| Costs of the project incurred |
$ 126,400
|
|
|
| Delivery date to tenant |
fourth quarter 2018
|
|
|
| Number of units | item |
|
|
372
|
| Total project costs |
$ 142,500
|
|
|
| Port Imperial South 11 [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Costs of the project incurred |
$ 104,900
|
|
|
| Delivery date to tenant |
third quarter 2018
|
|
|
| Number of units | item |
295
|
|
|
| Total project costs |
$ 122,000
|
|
|
| Construction Loan [Member] | XS Hotel Urban Renewal Associates LLC [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Maximum borrowing capacity |
94,000
|
|
|
| Amount outstanding |
65,600
|
|
|
| Construction Loan [Member] | Port Imperial South 11 [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Amount outstanding |
60,100
|
|
|
| Amount to fund |
78,000
|
|
|
| Development Property [Member] | Port Imperial South 11 [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Costs of the project incurred |
41,600
|
|
|
| Amount to fund |
$ 44,000
|
|
|